Exchange of Words + Opalescence + Wormfang Manta + Baboon Spirit

Exchange of Words

Opalescence

Wormfang Manta

Baboon Spirit

How it works

1. Cast Exchange of Words by paying 1.
2. When Exchange of Words enters the battlefield, it triggers, exchanging the text boxes of it and Wormfang Manta.
3. Activate Baboon Spirit by paying 3, exiling Wormfang Manta
4. At the beginning of your end step, Baboon Spirit triggers, returning Wormfang Manta from exile to the battlefield.
5. Exchange of Words leaves and enters the battlefield, triggering the second ability it gained from Wormfang Manta's textbox as well as its own ability.
6. Resolve the first Exchange of Words trigger, causing you to take an extra turn after this one.
7. Resolve the second Exchange of Words trigger, exchanging the text boxes of it and Wormfang Manta.
8. Repeat from step 3 during each turn.